Abstract
CERN experiment WA89 uses a Σ − beam at 340 GeV/c to study the production of charmed particles. Based on the reconstruction of all final charm states from the full data sample of our '93 and '94 beamtimes the total cc-cross section has been determined. Production of particles which have a light quark in common with the beam is compared to production of those which do not. Considerable production asymmetries between D − and D + , D - s and D + s , and Λ c and ¯Ac are observed.
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